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English dictionary

sphenoid

/'sf/i/n//Oi//d/

Definitions, examples, synonyms and antonyms from WordNet 3.0.

adjective

  1. Wedge-shaped; as, a <i>sphenoid</i> crystal.

    adjective

    Source: webster1913

noun

  1. butterfly-shaped bone at the base of the skull

    noun.body

    Source: WordNet 3.0

  2. A wedge-shaped crystal bounded by four equal isosceles triangles. It is the hemihedral form of a square pyramid.

    noun

    Source: webster1913

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